You can show the product category title above the thumbnails with by adding the following CSS to your Quick CSS (located under the Styling Tab in the theme options) or the custom.css file in the css folder of your theme files:

#top.tax-product_cat .page-title {
display: block;
color: #2F458A;
}

I’ve added a blue color to it but you can change the color code to whatever you would like. The important thing is the display: block to remove the display: none the theme adds to hide it by default.